Hello to anyone that can advice,

I have installed window 10 2 days ago both on the laptop(alienware) and tablet(Samsung ATIV smartpro). After that I realise both computer not able to login into steam (steam needs to be online to update. Please confirm your network connection and try again). I lost my dropbox and onedrive (keep on in starting mode... never able to start). My connection to 3D printer (which I think it cannot read off my dongle).

I have a feeling something in the setting of my window 10 is blocking all these but I do not know what. Can anyone advice me? Thanks!